(19)

(11)

EP 0 829 041 A1

(12)

(43) Date of publication: 18.03.1998 Bulletin 1998/12 (21) Application number: 97917610.0 (22) Date of filing: 26.03.1997

(51) International Patent Classification (IPC):  G05D 23/ 12( . ) G05D 23/ 13( . ) (86) International application number: PCT/US1997/004790 (87) International publication number: WO 1997/036219 (02.10.1997 Gazette 1997/42)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 26.03.1996 IT 1996TO00231 (71) Applicant: MASCO CORPORATION OF INDIANA Taylor Michigan 48180 (US)	(72) Inventor: KNAPP, Alfons D-88400 Biberach (DE) (74) Representative: KIRKER & Cie S.A.  122 rue de Genève, P.O. Box 324 1226 Genève-Thônex 1226 Genève-Thônex (CH)